endless seas
Well-Known Member
Fall,just knowing it is sitting for several months with clean oil opposed to dirty seams like the right thing to do...a happy engine makes a happy owner:smt001
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This would be a little more accurate discription of a multi-viscosity oil. What your describing is not how it works. Polymers are added to a light base (5W, 10W, 20W), which prevent the oil from thinning as much as it warms up. At cold temperatures the polymers are coiled up and allow the oil to flow as their low numbers indicate. As the oil warms up the polymers begin to unwind into long chains that prevent the oil from thinning as much as it normally would. The result is that at 100 degrees C the oil has thinned only as much as the higher viscosity number indicates. Another way of looking at multi-vis oils is to think of a 20W-50 as a 20 weight oil that will not thin more than a 50 weight would when hot.
Hey guys, i could quote many a post here but let me say this, if you think for one second that marine grade oil is any thing like automotive oil take your car/suv or what ever out on the highway in 2nd or 3rd gear and run it at 3800+ rpms for a couple hrs. and then let me know how you make out.
Hey guys, i could quote many a post here but let me say this, if you think for one second that marine grade oil is any thing like automotive oil take your car/suv or what ever out on the highway in 2nd or 3rd gear and run it at 3800+ rpms for a couple hrs. and then let me know how you make out.